remove log formatters

Author: hone

lib/resque.rb

@@ -11,9 +11,6 @@
 require 'resque/helpers'
 require 'resque/stat'
 require 'resque/logging'
-require 'resque/log_formatters/quiet_formatter'
-require 'resque/log_formatters/verbose_formatter'
-require 'resque/log_formatters/very_verbose_formatter'
 require 'resque/job'
 require 'resque/worker'
 require 'resque/plugin'